Hi, my name is joseph, and i need to hand in a paper on an egg timer circuit by next week. I'm kinda stuck here. I need to design a test circuit that will illuminate an LED for 180 seconds (3minutes) after a switch has been asserted. This circuit as given in the question should incorporate 74LS163 counters plus any other logic/flip-flops that may be required with a clock supplied at 1 Hz using a 555 timer.
I already have the 555 timer circuit that supplys a 1 Hz frequency but the problem is i'm unable to design the circuit with 74LS163-s and flip-flops. Can anybody help me please! I'm really desperate. I can't find the design of this circuit.
Pls help me, email me directly at josephlam131083@yahoo.com.sg if there's anyone out there kind enough to help me. Site links to this circuit diagrams or diagrams of the circuit itself will be much appreciated. Thank you.
Joseph
I already have the 555 timer circuit that supplys a 1 Hz frequency but the problem is i'm unable to design the circuit with 74LS163-s and flip-flops. Can anybody help me please! I'm really desperate. I can't find the design of this circuit.
Pls help me, email me directly at josephlam131083@yahoo.com.sg if there's anyone out there kind enough to help me. Site links to this circuit diagrams or diagrams of the circuit itself will be much appreciated. Thank you.
Joseph